Biological disk and biological rotating disk formed by same

Abstract

The invention discloses a biological disk and a biological rotating disk formed by same. The biological disk is an annular disk body; a plurality of arc baffle plates are uniformly arranged on the disk surface of the biological disk along the circumferential direction; two ends of the arc baffle plates respectively stretch towards an inner ring and an outer ring of the biological disk; a plurality of corresponding folding plates are arranged on the convex surfaces of the arc baffle plates; each folding plate is formed by splicing two plates which are arranged in an obtuse angle; one end of each folding plate is connected with the corresponding arc baffle plate and is in obtuse arrangement with the corresponding arc baffle plate; the other end of each folding plate points to the inner ring of the biological disk; the folding plate, which is closest to the inner ring, on the disk body and the disk surface around the inner ring are provided with net-shaped layers. The biological rotating disk is formed by the biological disk. According to the biological disk and the biological rotating disk disclosed by the invention, the hydraulic retention time can be increased, the varieties and the quantity of microbial communities can be enriched, the oxygen content of sewage can also be increased, the water quality can be homogenized, the growth environment of organisms can be optimized, and increment of sewage treatment efficiency can be finally realized.

Description

technical field [0001] The invention belongs to the field of biological sewage treatment equipment, and in particular relates to a biological disk and a biological turntable formed therefrom. Background technique [0002] The biological turntable is a biofilm sewage treatment technology pioneered by the former Federal Republic of Germany in the 1960s. It is mainly composed of four parts: disc, rotating shaft, contact reaction tank and driving equipment. Its main advantages are low energy consumption, high water load, large microbial biomass and convenient management. Due to the shortcomings of the traditional biological turntable, such as short time for sewage treatment, low specific surface area of ​​the disc, easy deformation, poor corrosion resistance, short service life, limited biological adhesion and poor biological impact load capacity. About 40% of the discs of the biological turntable are submerged under water. When the turntable is in operation, the discs exposed...

AI Technical Summary

Problems solved by technology

If the surface of the disk is too smooth and simple, insufficient oxygenation is likely to occur, which is not conducive to the growth of microorganisms on the biological disk. At the same time, even if the specific surface area of ​​the biological disk is sufficient, the design causes serious uneven force on the turntable after operation, which is easy to damage the biological disk. The disc or even the whole biological turntable increases the maintenance cost

Images